NOTE:
If your kernel version changed, you'll need to re-build the kernel again, with
$ make olconfig
$ make
In this case, you'll also need to re-install the drivers ans the kernel with:
# make modules_install install

Removing the already loaded modules

This is probably the trickiest part. You can, of course, just reboot the machine, but this may take some time, so Mauro Carvalho Chehab wrote a script that unloads all kernel modules from the memory. This script were integrated with the mercurial trees.

There's an updated rmmod.pl version that works with git and with all kernels that put the media drivers at the right location.

In order to remove all V4L/DVB drivers from the memory, all that it is needed is to run. as root:

# ./rmmod.pl unload

PS.: The other options of the script should be working as well, but they weren't really tested, since the only one that
is really useful outside Mecurial tree is the capability of removing the drivers from the memory.